Japanese scientists created mice from two fathers
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Japanese scientists created mice from two fathers, generated eggs from male skin cells. In the future, this may help infertile and same-sex couples to have children.
Scientists led by Katsuhiko Hayashi turned a skin cell carrying a male combination of XY chromosomes into an egg cell with a female XX version. The obtained eggs were fertilized with spermatozoa and about 600 embryos were grown. They were planted in mice, resulting in the birth of seven live mice. It is noted that the efficiency of 1% is lower than the efficiency of 5% when using ordinary eggs.
The mice looked healthy, grew normally and had offspring in adulthood. Now scientists are trying to repeat this achievement with human cells. According to Hayasa’s predictions, the technology will be available to people in ten years. However, he notes that this question is not only scientific, but also social.
- Experiments on animals are criticized by animal rights activists. The scientific community insists on the necessity of such experiments. In many countries, the rules of handling laboratory animals are legislated and aimed at the maximum reduction of their suffering. Some animal experiments can be replaced by alternative research methods.
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